A man was shot and killed early Tuesday when he threw rocks and tried to break into his 81-year-old father’s south Fulton County home, according to police.

The estranged son, identified as Troy Fountain, 56, tried “to make forced entry into the father’s home and was shot one time,” Chattahoochee Hills police Chief Stoney Mathis said. “The son is deceased and the case is under investigation at this time.”

Mathis said Fountain threw a rock through the glass in the front door. Police told Channel 2 Action News that the father shot through the door and hit the son in the head.

Officials have not filed charges against the father, identified as Lance Fountain.

“He had filed a report of his son stealing some things and also previous drug history,” Mathis told Channel 2. “We're trying to determine if it was self-defense and if indeed everything took place the way they say it took place.”

Authorities learned of the deadly shooting in the 3900 block of Cascade Palmetto Highway just after 3 a.m.

Lance Fountain, his wife and an adult sibling of Troy Fountain were in the home during the shooting, Channel 2 reported.

Chattahoochee Hills and Palmetto police initially responded to the scene due to confusion over the jurisdiction. South Fulton police, which just started providing services Monday, came as well.  Ultimately, the case was turned over to Chattahoochee Hills.

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8/26/17 - Atlanta, GA - Georgia leaders, including Gov. Nathan Deal, Sandra Deal, members of the King family, and Rep. Calvin Smyre,  were on hand for unveiling of the first statue of Martin Luther King Jr. on Monday at the statehouse grounds, more than three years after Gov. Nathan Deal first announced the project.  During the hour-long ceremony leading to the unveiling of the statue of Martin Luther King Jr. at the state Capitol on Monday, many speakers, including Gov. Nathan Deal, spoke of King's biography. The statue was unveiled on the anniversary of King's famed "I Have Dream" speech. BOB ANDRES  /BANDRES@AJC.COM

Credit: Bob Andres